Gilman Hot Springs is an unincorporated community in Riverside County, California, United States. Gilman Hot Springs is located on California State Route 79 4 miles (6.4 km) north-northwest of San Jacinto. Gilman Hot Springs has a post office which opened in 1938; its ZIP code is 92583, which it shares with San Jacinto. Sidney James Branch settled the community in 1881 and built the Relief Springs Hotel there in 1888. The community was originally known as San Jacinto Hot Springs and was later named after William and Josephine Gilman, who purchased the hotel in 1913.
Gold Base, the international headquarters of the Church of Scientology, is located near Gilman Hot Springs.